Congrats on getting your Milky Treasures Breast Milk Preservation Powder!

We made this video with all the steps to preserve your breast milk. If you prefer, you can also keep scrolling down to read the written instructions. The content is essentially the same as in the video!

What you'll need 

  • Small bowl
  • Parchment paper
  • Measuring cup or syringe to measure the breast milk
  • Small spoon
  • 10mL or 2tsp of breast milk for the 0.5 oz powder bag.
    30mL or 6tsp of breast milk for the 1.5 oz powder bag.

The below items are not necessary, but certainly helpful and recommended:

  • Mortar and pestle
  • Stainless-steel fine mesh, fine coffee filter, or fine tea filter

How much milk is needed?

The small bag contains approximately 1/2 oz of preservation powder, while the big bag contains 1.5 oz of preservation powder. You need to mix the whole content with 10mL of milk (small bag) or 30mL of milk (big bag).

In case you want to use only part of it, mix approximately 1/3 tsp of preservation powder for every 1 mL of milk. It can be challenging to measure tiny amounts precisely, but don't worry, it doesn't need to be 100% accurate.

Here you have some examples of conversions:

  • 1/2 tbsp of preservation powder for 5 mL of milk
  • 1/4 tbsp of preservation powder for 2.5 mL of milk

After you mix the preservation powder with the milk, you'll need to dry the mixture and turn it into a powder again. We'll cover that later, but for now you need to know that the milk turned into powder using this method will remain in good condition indefinitely if stored in a dry and cool place. 

With 10 or 30 mL of milk preserved with our powder (the whole content of the bag) you can color up around 40 or 120 mL of resin. There's no equivalence between the amount of resin and breast milk powder needed, it will depend on the desired opacity.


Let's preserve that breast milk!

Make sure the breast milk you use has been well preserved and there are no signs of spoilage. While you can boil breast milk to kill bacteria before using it, make sure it cools off prior to starting this phase as our preservation powder works best with breast milk at either fridge or room temperature conditions. 

Step 1

Tear off the top part of the bag, open it, and pour the desired amount in a small bowl. Once you have your well-preserved breast milk at fridge or room temperature, measure 10 or 30 mL of breast milk (if you're using all the powder), and pour it into the same small bowl where you put the preservation powder.

Step 2

Use a small spoon or a craft stick to mix the breast milk and the preservation powder. Do this until you get a liquidly-white paste. If the consistency seems too thick to keep stirring, add no more than 0.5mL of milk at a time and stir again to observe the consistency.

Step 3

Pour the paste from Step #2 onto a parchment paper and spread it out so the white paste can dry.

Step 4

Let it rest in a dry place at room temperature for 24 hours. 

Our preservation powder is made of non-toxic and natural ingredients so it’s safe to let the paste rest inside your home. 


Turning paste into powder!

Time to turn the dried paste into a powder you can use for your breast milk jewelry! 

For the next steps, we recommend that you use a mortar and pestle if you have one as it’s very efficient at grinding the powder to be very fine. Additionally, a fine mesh (like a coffee or tea filter, or even a fine strainer) will be useful to get the finest possible powder. If you don’t have any of these (or don’t want to get them) you can use a small bowl, a spoon, and some patience. 

Step 5

Take the parchment paper with the dried paste and carefully bend and scrape the surface with a spoon. Put the dried paste pieces either inside a mortar and pestle or a small bowl.  

Step 6

Grind the paste into a powder with a spoon or a pestle. The finer the better! This powder is made to be mixed with resin in the future and you don’t want big crumbs to be noticeable!

Step 7 (Optional)

Use a fine mesh (like a coffee or tea filter, or even a fine strainer) to separate the larger crumbs and grind them separately. Repeat this process until you get a very fine powder.

Step 8

Store this powder in a dry and cool place. It will remain in good condition until you put it to use. Add as much as you’d like to the resin.

This preservation powder works best with UV resin. Our breast milk jewelry kits also include a UV top coat for a shiny finish. Take into consideration that if you're going to add the breast milk powder to epoxy resin, the hardening process takes hours and small crumbs may settle on the bottom of the mold you're using. UV resin, on the other hand, cures instantly under a UV lamp.


How did we do? Do you have any suggestions? We’re here to help!

You can contact us on our social media accounts! Also, if you could leave a review on this product, it would mean the world to us!

Thank you for choosing Milky Treasures!